28347440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32213}}^1$

素因数の和:32237

約数の個数: 40

約数和(自身を含む): 71901648

約数和(自身を除く): 43554208

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32213, 64426, 128852, 161065, 257704, 322130, 354343, 515408, 644260, 708686, 1288520, 1417372, 1771715, 2577040, 2834744, 3543430, 5669488, 7086860, 14173720, 28347440]

約数ペア:

[(1, 28347440), (2, 14173720), (4, 7086860), (5, 5669488), (8, 3543430), (10, 2834744), (11, 2577040), (16, 1771715), (20, 1417372), (22, 1288520), (40, 708686), (44, 644260), (55, 515408), (80, 354343), (88, 322130), (110, 257704), (176, 161065), (220, 128852), (440, 64426), (880, 32213)]